Power conversion system
First Claim
1. A power conversion system, comprising:
- a single-phase AC power source for generating an AC power;
an AC/DC power converter connected to said single-phase AC power source for converting said AC power into a DC power;
a main smoothing capacitor connected to DC terminals of said AC/DC power converter;
a DC active filter connected in parallel with said main smoothing capacitor for controlling a compensation current (IF) flowing in said DC active filter such as to absorb an amount of fluctuation of said AC power supplied from said single-phase AC power source; and
a load device connected to said main smoothing capacitor as a DC voltage source for receiving a first DC voltage (Vd) applied to said main smoothing capacitor.
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Accused Products
Abstract
A power conversion system including a single-phase AC power source for generating an AC power. The power conversion system further includes an AC/DC power converter connected to the single-phase AC power source for converting the AC power into a DC power, a main smoothing capacitor connected to DC terminals of the AC/DC power converter, a DC active filter connected in parallel with the main smoothing capacitor for controlling a compensation current flowing in the DC active filter such as to absorb an amount of fluctuation of the AC power supplied from the single-phase AC power source, and a load device connected to the main smoothing capacitor as a DC voltage source for receiving a first DC voltage applied to the main smoothing capacitor.
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Citations
15 Claims
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1. A power conversion system, comprising:
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a single-phase AC power source for generating an AC power; an AC/DC power converter connected to said single-phase AC power source for converting said AC power into a DC power; a main smoothing capacitor connected to DC terminals of said AC/DC power converter; a DC active filter connected in parallel with said main smoothing capacitor for controlling a compensation current (IF) flowing in said DC active filter such as to absorb an amount of fluctuation of said AC power supplied from said single-phase AC power source; and a load device connected to said main smoothing capacitor as a DC voltage source for receiving a first DC voltage (Vd) applied to said main smoothing capacitor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A power conversion system, comprising:
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a single-phase AC power source for generating an AC power, wherein the frequency of fluctuation of said AC power is twice that of the frequency of said AC power source; an AC/DC power converter connected to said single-phase AC power source for converting said AC power into a DC power; a main smoothing capacitor connected to the DC terminals of said AC/DC power converter; a DC active filter connected in parallel with said main smoothing capacitor for controlling a compensation current (IF) flowing in said DC active filter such as to absorb an amount of fluctuation of said AC power supplied from said single-phase AC power source; a load device connected to said main smoothing capacitor as a DC voltage source for receiving said first DC voltage (Vd) applied to said main smoothing capacitor; and said AC/DC power converter further comprising a PWM converter for controlling an input current (Is) supplied from said single-phase AC power source such that said first DC voltage (Vd) applied to said main smoothing capacitor is practically constant.
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Specification